updated for version 7.4.393
Problem:    Text drawing on newer MS-Windows systems is suboptimal.  Some
            multi-byte characters are not displayed, even though the same font
            in Notepad can display them. (Srinath Avadhanula)
Solution:   Add the 'renderoptions' option to enable Direct-X drawing. (Taro
            Muraoka)
diff --git a/src/eval.c b/src/eval.c
index 4e512af..ae8331d 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -12464,6 +12464,9 @@
 #ifdef FEAT_DIGRAPHS
 	"digraphs",
 #endif
+#ifdef FEAT_DIRECTX
+	"directx",
+#endif
 #ifdef FEAT_DND
 	"dnd",
 #endif